Frip-gísel

According to the Old English Dictionary:

es;

frip-gísel

m. A peace-pledge, peace-hostage; obses pācis feriendæ causa dătus :-- Ðæt man húru friþgíslas to heom lǽte that at least peace-hostages be allowed them, L. O. D. 9; Th. i. 356, 20. frip-gisel